package com.zjl.common;

import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;

import java.time.LocalDateTime;

/**
 * 自定义元数据对象处理器，使得创建employee对象时某些属性得以自动填充
 */
@Component
@Slf4j
public class MyMetaObjectHandler implements MetaObjectHandler {
    @Override
    public void insertFill(MetaObject metaObject) {
        long empID = BaseContext.getCurrent();
        metaObject.setValue("createTime", LocalDateTime.now());
        metaObject.setValue("updateTime", LocalDateTime.now());
        metaObject.setValue("createUser", empID);
        metaObject.setValue("updateUser", empID);

        log.info("公共字段自动填充【insert】");
        log.info("metaObject:{}",metaObject.toString());
    }

    @Override
    public void updateFill(MetaObject metaObject) {
        long empID = BaseContext.getCurrent();
        metaObject.setValue("updateTime", LocalDateTime.now());
        metaObject.setValue("updateUser", empID);

        log.info("公共字段自动填充【update】");

        long id = Thread.currentThread().getId();
        log.info("当前线程id：{}",id);

        log.info("metaObject:{}",metaObject.toString());
    }
}
